Home / 15,490.40-23,232.24-7,170.80

Finding the Fourth Proportional to 15,490.40, 23,232.24 and 7,170.80

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Solution

The fourth proportional to 15,490.40, 23,232.24 and 7,170.80 is: 10,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,490.40 : 23,232.24 = 7,170.80 : x
  2. Step 2: Convert to fraction form
    15,490.40/23,232.24 = 7,170.80/x
  3. Step 3: Cross multiply
    15,490.40x = 23,232.24 × 7,170.80
  4. Step 4: Simplify right side
    15,490.40x = 166,593,746.59
  5. Step 5: Solve for x
    x = 166,593,746.59/15,490.40
  6. Step 6: Final answer
    x = 10,754.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.